So I have a question for the more experienced. I am pretty new to this and need advice. I have a 91 Chevy stepside with a 350 in it and I want to upgrade to a 454. I'm not totally sure if this is possible but if it is I would like to know the best place to get a performance motor and the best way to install it
welcome to the site.
need some more specifics imo.
454/th400 and beef up the rear end. would obviously need different motor/trans mounts and exhaust. but that combo, if carb'd, wouldnt have any electronics to worry about. but just going with what's been given
need some more specifics imo.
454/th400 and beef up the rear end. would obviously need different motor/trans mounts and exhaust. but that combo, if carb'd, wouldnt have any electronics to worry about. but just going with what's been given
You might even get lucky and score the mounts from a 454 SS in a junk yard, 14sf would be a plenty strong axle and the perches are the correct width
It has the 350 turbo trans on it right now so what would I have to change that out with to support a 454
Nothin has been done to the truck at all its all stock. So what would be things to consider when I make this change as far as the rear end, computers, etc...
if your going that far a LS swap will net you more power then the choked up 454s of the 90s and better fuel mileage
the 454 and turbo 400 in my panel delivery came out of a 1 ton 89 GMC, All you should need to do is change the motor mounts and trans cross member if it don't line up.
you do realize a stock big block from that trucks era only has 255 hp from the factory. the same HP as the 350 small block of 96? only benefit was more torque.
And thats Crank HP,
And thats Crank HP,